nondisjunction
11nondisjunction — non·disjunction …
12nondisjunction — n. a condition in which pairs of homologous chromosomes fail to separate during meiosis or a chromosome fails to divide at anaphase of mitosis or meiosis. It results in a cell with an abnormal number of chromosomes (see monosomy, trisomy) …
13nondisjunction — /nɒndɪsˈdʒʌŋkʃən/ (say nondis jungkshuhn) noun the failure of chromosomes to follow normal separation into daughter cells at division …
14nondisjunction — noun meiosis in which there is a failure of paired homologous chromosomes to separate; results in an abnormal number of chromosomes in the daughter cells • Hypernyms: ↑meiosis, ↑miosis, ↑reduction division …
15Нерасхождение (Nondisjunction) — состояние, при котором пары гомологичных хромосом неполностью расходятся во время мейоза или происходит неполное разделение хромосомы во время анафазы митоза или мейоза. В результате образующаяся клетка содержит аномальное число хромосом (см.… …
16Meiotic nondisjunction — Failure of two members of a chromosome pair to separate (disjoin) during meiosis so that both go to one daughter cell and none to the other. This mechanism is responsible for the extra chromosome 21 in trisomy 21 (Down syndrome) and for extra and …
17Mitotic nondisjunction — Failure of the two members of a chromosome pair to separate (disjoin) during mitosis so that both go to one daughter cell and none to the other …
18НЕРАСХОЖДЕНИЕ — (nondisjunction) состояние, при котором пары гомологичных хромосом неполностью расходятся во время мейоза или происходит неполное разделение хромосомы во время анафазы митоза или мейоза. В результате образующаяся клетка содержит аномальное число… …
19Genetic origins of Down syndrome — Down syndrome is a chromosomal abnormality characterized by the presence of an extra copy of genetic material on the 21st chromosome, either in whole (trisomy 21) or part (such as due to translocations). The effects of the extra copy varies… …
20Down syndrome — Classification and external resources Boy with Down syndrome assembling a …
